com.lightningkite.lightningdb.CollectionChanges.kt Maven / Gradle / Ivy

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@file:SharedCode
package com.lightningkite.lightningdb

import com.lightningkite.khrysalis.Equatable
import com.lightningkite.khrysalis.IsCodableAndHashable
import com.lightningkite.khrysalis.JsName
import com.lightningkite.khrysalis.SharedCode
import kotlinx.serialization.Serializable
import java.util.ArrayList

@Serializable
data class CollectionChanges(
    val changes: List> = listOf()
) {
    @JsName("pair")
    constructor(old: T? = null, new: T? = null):this(changes = if(old != null || new != null) listOf(EntryChange(old, new)) else listOf())
}

fun , ID: Comparable> List.apply(changes: CollectionChanges): List {
    val changeable = this.toMutableList()
    for(change in changes.changes) {
        change.old?.let { old -> changeable.removeAll { it._id == old._id }}
        change.new?.let { new -> changeable.add(new)}
    }
    return changeable
}

// This will not convert well. Manually add the type argument to the return EntryChange on the swift side. "EntryChange"
inline fun  CollectionChanges.map(mapper: (T)->B): CollectionChanges {
    return CollectionChanges(changes = changes.map { it.map(mapper) })
}